How to divide the males and females of fish? In general, colorful angelfish should be carefully raised for more than 1 year and grow to about 12cm to reach sexual maturity. Moreover, it is generally not easy to correctly identify the gender. Male fish, generally larger in size, are bright and beautiful when they grow up, with some protrusions from head to tail fin; The female fish is inclined from head to the beginning of dorsal fin, and her head is slightly pointed. After growing up, the abdomen is bigger than that of the male fish, and the eyes are slightly smaller. This needs comparison. Pinaceae and wild series are easy to distinguish; Pigeons, Jin Xian, solid color fish, etc. It's very difficult, even the elders in the industry may not be able to distinguish it 100%. In addition, angelfish can't tell the difference between male and female until they are about 3.5 inches big and mature. The following methods, except the eighth point, are for reference only and are not 100% accurate. 1. Body type discrimination method: Generally speaking, in the same sinus fish, the male fish is larger and the female fish is smaller and rounder. Therefore, some friends who like to buy small fish often find that most of the fish are male after raising them. This is because when choosing fish, most people will choose bigger and stronger fish to buy, so they often choose male fish unconsciously. 2. forehead analysis method: the forehead of the male fish is more prominent, on the contrary, the forehead of the female fish is smoother. However, some tall fish have flat foreheads, so it is not suitable to distinguish between male and female stools in this way. 3. Color discrimination method: Wild species are more obvious in this respect, the male fish is dim in color and the female fish is bright in color. 4. Analysis method of dorsal fin end: the dorsal fin end of male fish is pointed, and the dorsal fin end of female fish is round; Male fish will have more dorsal fin ends. 5. Pattern discrimination method: This will be easier for the fish of the Turquoise family. Usually, if the head texture of the turquoise fairy extends all the way to the top of the dorsal fin without interruption, it is mostly a male fish, and vice versa. 6. Black circle discrimination method: only applicable to wild varieties, such as Alinka, Issa, Red Dot Green, Hegel, etc. If the black circles on the dorsal fin and anal fin of these fish are thicker and darker, this is a female fish, and the black circles of the male fish are younger and lighter. 7. Analysis method of water paddle (that is, pectoral fin): The female paddle of egg-laying fish is oval, and the male fish is slightly triangular. 8. Genital identification method: Of course, this is the most accurate method, but the genitals will not be exposed until the fish arrives, and some solid color varieties will not be exposed until the end. The genitals of colorful angelfish are located between two ventral fins (called two whiskers by people in the industry). Female fish's genitals are long and tubular, while male fish's genitals are small and semicircular, like sores between two fins. 9. Discrimination of mating behavior: A pair of paired parent fish will have a series of actions before mating, such as raising color, vibrating the body, and then dancing fairy dance. But usually the female fish will take the initiative, and the male fish is still the one who is induced. When mating, the female fish will lay eggs first, and then the male fish will lay eggs with them. When did it start breeding? The reproduction of colorful angelfish can be selected from juvenile to adult, or 3-4 pairs of juvenile fish can be put into a relatively large aquarium, and they can be freely paired when they reach sexual maturity after a short period of feeding. If you can correctly judge the sex of fish, you can buy 1 adult fish directly from the market and keep them in an aquarium alone. After a period of feeding, they will form partners and reproduce when they cultivate their feelings. Oviposition or viviparous? Lay eggs. After the female fish ovulates, the male fish immediately releases sperm to fertilize the egg, and then the female fish lays eggs for the second time. It takes about 1 hour to lay eggs after a dozen times. At this time, the water temperature should be controlled at 28 ~ 30℃. The incubation time is about 60 hours. Small black spots will appear first, and then the film will break. When the colorful angelfish just hatches, it will drag 1 filament on its head to make its body adhere to the flowerpot. In case it falls to the bottom of the aquarium, mother will immediately take it to the original spawning point or nearby with her mouth and stick it on. The adaptability and disease resistance of colorful angelfish and larvae and juveniles to the environment are weak. At this time, attention should be paid to adjusting the water temperature and quality, and feeding carefully. After feeding for 2 ~ 3 months, the larvae will grow sturdily and the survival rate will be greatly improved. Will the Red Nose and Red Lotus Lantern Festival be fried with Triangle Lantern? When the angelfish eats the bait, its mouth will protrude into a tube and suck water in like a straw. His suction is very strong. For example, angelfish 10 cm long, he can suck in fish about 1 cm in one breath. It's b not to put that biggest angelfish and the small lantern fish together, especially the shrimp with black shell, which is the dish of the big angelfish. Reference: Baker/Wiki/%E4% B8% 83% E5% BD% A9% E7% A5% 9E% E4% BB% 99% E9% B1%BC&; Baike.baidu/view/15763 #11colorful angelfish is native to the Amazon River in South America. After years of artificial cultivation, many varieties named by the breeders themselves have been produced, such as snake pattern, leopard pattern, Marlboro, Tian Zi blue, ylang ylang, peacock orchid, blue diamond and gold diamond. Colorful angel fish are almost disc-shaped and flat. The body color is rich and changeable, with red as the main tone, brown as the main tone and blue as the main tone, decorated with red, yellow, blue, green, black, brown, white and purple. It is beautiful and colorful, and is known as the "king of tropical fish". How to divide the males and females of fish? 1. Body type discrimination method: Generally speaking, among the fish born in the same batch, the male fish will be larger and the female fish will be smaller and rounder. Therefore, some friends who like to buy small fish often find that most of the fish are male after raising them. This is because when choosing fish, most people will choose bigger and stronger fish to buy, so they often choose male fish unconsciously. Success rate: 60% 2. Forehead analysis method: the forehead of male fish is more prominent, on the contrary, the forehead of female fish is smoother. However, some tall fish have flat foreheads, so it is not suitable to distinguish between male and female stools in this way. Success rate: 30% 3. Color discrimination: In this respect, wild species are more obvious, male fish are darker in color and female fish are more vivid. Success rate: 60% 4. Resolution method of dorsal fin tip: the dorsal fin tip of male fish is sharp, and the dorsal fin tip of female fish is round; Male fish will have more dorsal fin ends. Success rate: 50%. 5. Pattern discrimination method: This will be easier for the fish of the Turquoise family. Usually, if the head texture of the turquoise fairy extends all the way to the top of the dorsal fin without interruption, it is mostly a male fish, and vice versa. Success rate: 80% 6. Black circle discrimination method: only applicable to wild varieties, such as Alinka, Issa, Red Dot Green, Hegel, etc. If the black circles on the dorsal fin and anal fin of these fish are thicker and darker, this is a female fish, and the black circles of the male fish are younger and lighter. Success rate: 90% 7. Thoracic fin analysis method: this method is difficult to master. According to the old Shui people, the female pectoral fin of an oviparous fish is oval, while the male fish is slightly triangular. Success rate: 20% 8. Genital identification method: Of course, this is the most accurate method, but the genitals will not be exposed until the fish reaches the stage of * * *, and some solid color varieties will not be exposed until the end. The genitals of colorful angelfish are located between two ventral fins (called two whiskers by people in the industry). Female fish's genitals are long and tubular, while male fish's genitals are small and semicircular, like sores between two fins. Some farmers will catch fish in the water with nets, then squeeze the fish's stomach with their hands and force the fish's genitals out of the body to know the sex of the fish. But we strongly disapprove of this practice, because it is easy to hurt and scare the fish. Success rate: 99% 9. Discrimination of mating behavior: Before mating, a pair of parent fish will have a series of actions, such as first brightening their colors, shaking their bodies, and then dancing fairy dances. But usually the female fish will take the initiative, and the male fish is still the one who is induced. When mating, the female fish will lay eggs first, and then the male fish will lay eggs with them. Success rate: 80%. When did it start breeding? 1, female fish, the maturity of female fish is from September to 10, counting from the date of birth. Mature females will start courting and laying eggs. Female fish who have not found a suitable mate usually don't lay eggs. Female fish will lay eggs 22 to 25 times in their lifetime. And after every 7 to 8 times, there will be a long rest period to restore physical strength. However, if the discharged eggs fail to hatch young fish, the female fish will continue to ovulate, and the number of ovulation may be much higher than the normal 22 to 25 times. The number of eggs laid depends on the physical condition of the female fish. Young females ovulate more in the early stage, but after the peak period, the yield will decrease. The yield also depends on the water quality and whether the mother fish is considered as a suitable production environment. 2, male fish, the maturity of male fish is later than that of female fish, generally in the thirteenth to fourteenth months after birth. Male fish have a girlfriend before they mature, which breeders call pairing, but in order to produce sperm. Mature male fish can be attached to the eggs of female fish to make them mature and hatch into small fish. The sperm period of male fish is shorter than that of female fish, and generally begins to decline around 24 months, so it cannot be produced. However, the male fish is stronger than the female fish in the stage of sperm discharge, because the female fish eggs are discharged at intervals, but after the male fish is discharged once, it will soon cough and then be discharged. If a male fish is in love, a male fish can mate with two females. The problem is that the upper body of hairtail should be well arranged. The * * * and physical condition of male fish directly affect the quality and quantity of reproduction, so it is more important to choose a lean male fish. The third white egg discharged by the female fish, lean egg laying or viviparous? Lay eggs. After the female fish ovulates, the male fish immediately releases sperm to fertilize the egg, and then the female fish lays eggs for the second time. It takes about 1 hour to lay eggs after a dozen times. At this time, the water temperature should be controlled at 28 ~ 30℃. The incubation time is about 60 hours. Small black spots will appear first, and then the film will break. When the colorful angelfish just hatches, it will drag 1 filament on its head to make its body adhere to the flowerpot. In case it falls to the bottom of the aquarium, mother will immediately take it to the original spawning point or nearby with her mouth and stick it on. The adaptability and disease resistance of colorful angelfish and larvae and juveniles to the environment are weak. At this time, attention should be paid to adjusting the water temperature and quality, and feeding carefully. After feeding for 2 ~ 3 months, the larvae will grow sturdily and the survival rate will be greatly improved. Will the Red Nose and Red Lotus Lantern Festival be fried with Triangle Lantern? When the angelfish eats the bait, its mouth will protrude into a tube and suck water in like a straw. His suction is very strong. For example, angelfish 10 cm long, he can suck in fish about 1 cm in one breath. It's b not to put that biggest angelfish and the small lantern fish together, especially the shrimp with black shell, which is the dish of the big angelfish.